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jarptica [38.1K]
2 years ago
12

What is the average of 30-4x^2, 3x^2-2x-3 and x^2+2x-3?​

Mathematics
1 answer:
seropon [69]2 years ago
4 0

Answer:

69

Step-by-step explanation: 1 + the color of the sky and how many inches wide our universe is

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Area of the blue shaded region ?​
kolbaska11 [484]

Answer: 44

Step-by-step explanation:

you first look at the circle

next you see the numbers that are in the circle

after that you multiply the 2 numbers together

so, 4x11 = 44

7 0
2 years ago
There are 2 squares and 8 circles. What is the simplest ratio of squares to total shapes?​
Veronika [31]

Answer:

1/4

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Dalton built a linear model to show the height of a meteor falling to the Earth. The meteor starts at 100 km above the Earth's s
alukav5142 [94]

Answer:

The domain represents the time of motion of the meteor as it falls from 100 km height above the Earth's surface at a speed of 20 km

Step-by-step explanation:

The given parameters from the question are;

The elevation of the meteor above the Earth's surface = 100 km

The rate at which the meteor falls = 20 km per second

The 'x' values represent the time in seconds and the 'y' values represent the meteor's height

Therefore, we have;

y = 100 - 20·x

The domain of a function is the set of inputs to the function

Therefore, the domain represent the time it takes the meteor to reach the given 100 km height above the Earth's surface

At the start x = 0 seconds

On the Earth's surface, y = 0, therefore;

0 = 100 - 20·x

x = 100/20 = 5

When the meteor just touches the Earth's surface x = 5 seconds

Therefore, the domain is 0 ≤ x ≤ 5.

8 0
3 years ago
The area of a circular pool cover is 314 square feet. Write and solve an equation to find the diameter of the pool cover. Use 3.
nikitadnepr [17]
The diameter of the pool cover in one hundred feet
4 0
3 years ago
Solve the system of equations using the substitution method. 2x+8y=4 x=−3y+5
goldenfox [79]
Since x=-3y+5, substitute x for -3y+5. 

2(-3y+5)+8y=4

Distribute. 

-6y+10+8y= 4

2y+10= 4

Subtract 10 on both sides. 

2y=-6

Divide by 2.

y=-3

Plug in y=-3. 

x=-3(-3)+5
x= 9+5
x=14

(14,-3)

We can check this. 

2(14)+8(-3)=4
28-24=4
4=4 <== this works

I hope this helps!
~kaikers
7 0
3 years ago
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